18660858315086 has 64 divisors (see below), whose sum is σ = 31781896171200. Its totient is φ = 8156872958976.

The previous prime is 18660858315067. The next prime is 18660858315091. The reversal of 18660858315086 is 68051385806681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19871156 + ... + 20789048.

It is an arithmetic number, because the mean of its divisors is an integer number (496592127675).

Almost surely, 2^{18660858315086} is an apocalyptic number.

18660858315086 is a deficient number, since it is larger than the sum of its proper divisors (13121037856114).

18660858315086 is a wasteful number, since it uses less digits than its factorization.

18660858315086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918453.

The product of its (nonzero) digits is 66355200, while the sum is 65.

The spelling of 18660858315086 in words is "eighteen trillion, six hundred sixty billion, eight hundred fifty-eight million, three hundred fifteen thousand, eighty-six".